ARC 200CT User Manual - Page 16

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NOTES OR PREVENTIVE MEASURES

1. Environment

1） The machine should be operated in dry environments with humidity levels of max 90%.

2） Ambient temperature should be between -10 to 40 degrees centigrade.

3） Avoid welding in sunshine or drippings. Do not let water inter the machine.

4） Avoid welding in dust area or the environment with corrosive gas.

5） Avoid gas welding in the environment with strong airflow.

2. Safety norms

The welding machine is installed with protection circuit of over voltage, over current and over heat. When

voltage, output current and temperature of machine exceed the required standard, welding machine will

stop working automatically. However, overuse (such as over voltage) will still result in damage to the

welding machine. To avoid this, the user must pay attention to the following.

1） The working area is adequately ventilated

The welding machine is powerful machine, when it is being operated, it generated by high currents,

and natural wind will not satisfy machine cool demands. So there is a fan in inner-machine to cool

down machine. Make sure the intake is not in block or covered, it is 0.3 meter from welding machine

to objects of environment. User should make sure the working area is adequately ventilated. It is

important for the performance and the longevity of the machine.

2） Do not over load

The operator should remember to watch the max duty current (Response to the selected duty cycle).

Keep welding current is not exceed max duty cycle current. Over-load current will damage and burn

up machine.

3） No over voltage

Power voltage can be found in diagram of main technical data. Automatic compensation circuit of

voltage will assure that welding current keeps in allowable range. If power voltage is exceeding

allowable range limited, it will damage to components of machine. The operator should understand

this situation and take preventive measures.

4） Ground the earth wire in the power supply cable.

5） If welding time is exceeded duty cycle limited, welding machine will stop working for protection.

Because machine is overheated, temperature control switch is on "ON'' position and the indicator light

is red. In this situation, you don't have to pull the plug, in order to let the fan cool the machine. When

the indicator light is off, and the temperature goes down to the standard range, it can weld again.

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